I have been dutifully reading my rain gauge for over a year now, and I trotted out this morning to ensure that I made the last reading of 2020 before 9:00 on 1 January. As I now have a whole calendar year of data I decided to plot it up to see how it compared to typical values for the area. The Met Office provide data for the 1981 — 2010 period, so I downloaded that. I then extended my code so that it would produce a bar chart with my own data for the year, and the Met Office data, plotted side-by-side.
I don’t know how much bias there is between my own rain gauge and the official recording site for Dunbar. But if we ignore that, it looks as if 2020 was about 7% wetter than average, driven by a very wet February, October and December, and mitigated by a dry April, September and November.